Table 2 Effect of plasma application on S.mutans biofilm (Log CFU/ml).

From: Antibacterial efficacy of non-thermal atmospheric plasma against Streptococcus mutans biofilm grown on the surfaces of restorative resin composites

Groups

CFU log/ml

Log reduction

Percentage reduction

ANOVA test

Control

9.19 ± 0.45

Reference

Reference

A

Plasma 30”

7.42 ± 0.48

1.77

19.2%

B

Plasma 90”

6.80 ± 0.25

2.39

26%

C

Plasma 120”

5.95 ± 0.12

3.24

35.25%

D

Plasma 150”

5.67 ± 0.4

3.52

38.3%

D

Argon gas

8.20 ± 0.35

0.99

10.8%

*

Chlorhexidine 2%

0

9.19

100%

*

  1. Groups having similar letters are not significantly differences (p > 0.05), *Indicates significantly differences with all the groups.